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  <h1>Telemetry end-to-end</h1>
<p class="lead">A package showing telemetry data acquisition end-to-end: Microcontroller firmware to cloud side data processing, using Drogue IoT and Apache Kafka in the process.</p></div>
  
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<nav class="nav nav-pills nav-fill mt-2 mb-5"><a class="nav-item nav-link " href="/packages/packages/telemetry-e2e/">Overview</a><a class="nav-item nav-link " href="/packages/packages/telemetry-e2e/10-installation-cloud/">Cloud</a><a class="nav-item nav-link " href="/packages/packages/telemetry-e2e/20-installation-gateway/">Gateway</a><a class="nav-item nav-link " href="/packages/packages/telemetry-e2e/30-installation-device/">Device</a><a class="nav-item nav-link " href="/packages/packages/telemetry-e2e/40-using/">Using it</a><a class="nav-item nav-link " href="/packages/packages/telemetry-e2e/50-understand/">Understanding it</a><a class="nav-item nav-link " href="/packages/packages/telemetry-e2e/60-alternatives/">Alternatives</a><a class="nav-item nav-link " href="/packages/packages/telemetry-e2e/70-cheating/">Cheating</a><a class="nav-item nav-link  active" href="/packages/packages/telemetry-e2e/90-learn/">Learn more</a></nav><div class="row">

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    <h2 id="check-the-source">Check the source</h2>

    <p>As all of this is open source, you can not only check <a href="https://github.com/eclipse/packages/tree/master/packages/telemetry-e2e">the code of this package</a>, you can also dive into the code of all backing projects.</p>

    <p>A few noteworthy links specific to this package are:</p>

    <ul>
      <li><a href="https://github.com/drogue-iot/drogue-device/tree/main/examples/nrf52/microbit/ble-temperature">The code to the micro:bit firmware</a></li>
      <li><a href="https://github.com/ctron/kura-addons/tree/master/examples/de.dentrassi.kura.addons.example.microbit">The code to the Eclipse Kura addon</a></li>
      <li><a href="https://github.com/eclipse/packages/blob/master/packages/telemetry-e2e/extra/drogue-cloud-incoming.js">The snippet of the Ditto payload mapper</a></li>
      <li><a href="https://github.com/ctron/streamsheets-kubernetes">The Streamsheets Kubernetes deployment</a></li>
    </ul>

    <h2 id="reach-out">Reach out</h2>

    <p>All projects participating in this package have their own communities and communication channels. Take a look, and 
maybe reach out to learn more or give some feedback:</p>

    <ul>
      <li><a href="https://iot.eclipse.org">Eclipse IoT Working Group</a> – <a href="https://eclipse-iot-wg.slack.com">Slack channel</a></li>
      <li>Projects
        <ul>
          <li><a href="https://www.eclipse.org/ditto">Eclipse Ditto</a> – <a href="https://gitter.im/eclipse/ditto">Gitter channel</a></li>
          <li><a href="https://www.eclipse.org/kura">Eclipse Kura</a> – <a href="https://www.eclipse.org/kura/community.php#discussion-forum">Discussion forum</a></li>
          <li><a href="https://www.eclipse.org/streamsheets">Eclipse Streamsheets</a> – <a href="https://accounts.eclipse.org/mailing-list/streamsheets-dev">Mailing list</a></li>
          <li><a href="https://drogue.io">Drogue IoT</a> – <a href="https://matrix.to/#/#drogue-iot:matrix.org">Matrix channel</a></li>
        </ul>
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    <h2 id="what-is-next">What is next?</h2>

    <p>Here are a few ideas of what you could do next.</p>

    <h3 id="add-a-new-sensor-value">Add a new sensor value</h3>

    <p>If you want to make an end-to-end change, add another value from one of the micro:bit’s sensor to the data. This would
include:</p>

    <ul>
      <li>Adding the readout to the firmware</li>
      <li>Reading it as part of the Kura addon example</li>
      <li>Extracting it in the Ditto mapper, assigning it a new device feature</li>
      <li>Mapping the field to a new cell in streamsheets.</li>
    </ul>

    <h3 id="play-with-the-visualization">Play with the visualization</h3>

    <p>Instead of just showing a plain value, you could play with the spreadsheet. Maybe start by showing Fahrenheit instead
of Celsius? Or Kelvin? You can also show the last few values in a table.</p>

    <p>Check out the Streamsheets project to learn more.</p>
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    <h2 id="projects">Projects</h2>

    <ul>
      <li><a href="https://www.eclipse.org/ditto">Eclipse Ditto</a></li>
      <li><a href="https://www.eclipse.org/kura">Eclipse Kura</a></li>
      <li><a href="https://www.eclipse.org/streamsheets">Eclipse Streamsheets</a></li>
      <li><a href="https://drogue.io">Drogue IoT</a></li>
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